
Christian W
Level 1
Senior software engineer, technical writing, developer docs, CI CD and Docker
Kompetenzen

Meine Dienstleistungen


Portfolio
Arbeitserfahrung
Freelance technical writer and DevOps engineer
Self-Employed / Freelancer • Selbstständig
Aug 2025 - Present • 1 yr 1 mo
I write technical content and build the delivery infrastructure behind it, for clients on Fiverr and directly. WRITING • Technical blog posts and long-form articles for developers and engineering leaders • Application security: OWASP Top 10, CIS Controls, securing AI features in existing apps, smart contract security • Architecture and modernisation: legacy migration strategies, technical debt, C++ to Rust • Custom diagrams drawn for the article, not stock images • Delivered in English or German - I write natively in both ENGINEERING • CI/CD pipelines with GitHub Actions, GitLab CI and Jenkins • Multi-stage Dockerfiles, Docker Compose setups and container troubleshooting • Developer documentation, API references and READMEs The two sides feed each other. I write about systems I actually run, and I document the systems I build the same way I write for publication: for the person who has to use it, not for the person who built it.
COMPLEVO GmbH
Vollzeit • 11 yrs 5 mos
Information Security Officer
Sep 2024 - Present • 2 yrs
Appointed information security officer for COMPLEVO GmbH and MAKEO GmbH, alongside my engineering role. • Maintain and develop internal security processes and documentation • Support risk assessments and the evaluation of mitigating measures • Coordinate security topics across teams • Prepare, accompany and follow up the annual information security audit This is why access-sensitive work is routine for me rather than an exception. Repository access, temporary deploy tokens and NDAs get handled the way an audited organisation handles them: least privilege, nothing stored, everything documented. It is also where a good part of my security writing comes from - OWASP, CIS Controls, AI risk. I write about it because I am accountable for it.
Senior DevOps Engineer
Apr 2017 - Present • 9 yrs 5 mos
I design and run the CI/CD, deployment and monitoring for cloud and server-side software in the automotive sector. Nine years at the same company, on systems that are still in production. • Build and maintain GitLab CI and GitHub Actions pipelines for C# .NET and Python services • Containerise applications with Docker and keep build times and image sizes down • Operate deployment and runtime environments, monitoring, and root-cause analysis when a release goes wrong • Support development teams on stable releases, interface integration and database operations • Write the handover documentation that lets a team maintain what I built without me This is the day job behind everything I offer on Fiverr. The pipelines, the containers and the technical writing all come from shipping production software, not from reading about it.
9 Bewertungen
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trust_nickol

Deutschland
Fantastic experience! The professionalism of work was top-notch, and their eloquence in communication made the entire process effortless. Highly recommended!
pervaizakhan

Kanada
This my first time asking to write technical article. I will review it with more detial

ayubomar1

Indien
Christian is a thorough professional, who understood whats needed & delivered beyond expectations on time. He researched & wrote on emerging technologies and how EU and Germany are emerging as a new destination for AI & Deep Tech Innovation. Glad to recommend him.

nick_k_

Niederlande
Very detailed article with an eye for technical aspects. This goes above and beyond a typical article. Recommend working with him - if you want something more than a typical blog post.

nick_k_

Niederlande
Really amazing job again by Christian. The level of research and attention to detail was next level. The deep research along with excellent writing leads to an article that will help my website for sure!
